Stephen Tsotsi Kasumali - Zambian rock music!

Stephen Tsotsi Kasumali is a singer from Northern Zambia. He, together with William Mapulanga and John Lushi, can be called the the founding fathers of modern Zambian rock music. Unfortunately there's not really a lot online, but I found some samples on smithsonianglobalsound.org and on rhapsody.com (mind, though, that this link only allows you to listen to the sample if your IP address is within US ranges).